Water-cooling device



March 6, 1928.

Mu A. POCOCK WATER COOLING DEVICE Filed IVIarch/i i592? 1. Sheets-Sheet l /lY/wnza/ Neffa/7 A P06005 March 6, 1928.

M. A. POCOCK WATER COOLING DEVICE Filed March 4, 1927 2 SheetS--Sheet 2 Neffa/7 f1, 1306001? Patented Mar. 6, 1928.

UNITED STATES PATENT OFFICE.

MERTON A. POCOCK, OF MINNEAPOLIS, MINNESOTA, ASSlG-NOR TO CARTER-MAYHEW MANUFACTURING COMPANY, OF MINNEAPOLIS, MINNESOTA, A CORPORATION OF MINNESOTA.

Application filed March 4, 1927.

My invention relates to water cooling systems involving the use of drinking fountains, and is in the nature of an improvement on the water cooling system disclosed and broadly claimed in the Ridler United States Patent No.1,539,867 of date June 2, 1925, and. which patent is now about to be reissued.

The present invention, in common with the Ridler patent, utilizes the cold waste water from the fountain as an important feature of the water cooling means but it involves other and highly important features whereby the cooling action is improved and whereby the manufacture and cost of the apparatus is reduced.

Generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

The device will take various forms but is exemplified in a commercial form of the apparatus embodying what is at present thought to be the preferred form thereof, and is illustrated in the accompanying drawings wherein like characters indicate. like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a vertical axial section of the cooling apparatus;

Fig. 2 is a horizontal section taken on the line 2 2 of Fig. 1; and

Fig. 3 is a horizontal section taken on the line 3-3 of Fig. 1.

The body of the apparatus illustrated is cylindrical and it comprises spaced outer and inner shells 4 and 5 between which insulating material 6, such for example as granulated cork, is interposed. This cylindrical body which affords an outer casing is shown as supported by a pedestal 7, and its substantially annular top is shown as closed by a rim casting 8 that affords a large central opening 9 through which cakes of ice y may be inserted into the interior of the casing.

The inner shell is preferably of galvanized sheet metal, copper or other non-rustable material, and the interior thereof affords a. refrigerating chamber l0. The ice passage 9 is normally closed by a removable cover 11.

The numeral 12 indicates as an entirety a bubbling fountain of standard or any suitable structure and which, as shown, is applied directly on the annular rim casting S.

WATER-COOLING DEVICE.

Serial No. 172,643.

lVithin -the refrigerating compartment is a plurality of pans, as shown three in number, the one superimposed on the other. These pans may be cast or of any suitable metallic structure. The lowermost pan 13, as preferably made, is downwardly curved and is formed with a spiral open topped channel 14 that follows a conical surface and at its inner extremity is open for discharge through a large central opening 15. This lower pan 13 has depending rest lugs 16 that rest on the bottom of the inner shell 5. A pan 17 just above the lower pan 13 is of reverse. conical form, that is, is upwardly convex and has a spiral open topped channel 18 which, at its upper extremity, leads into a central basin 19 formed as a part of ,said pan 17. This pan has depending rest lugs 20 that bear on the spiral anges of the lower pan 13. The upper pan 21 has rest lugs 22 that bear on the spiral flange of the pan 17. This pan 21 is provided with an overflow conduit 23, the upper extremity of which is below the rim of said pan 21 and the lower portion of which is extended below the bottom of said pan and terminates in position to deliver into the basin 19 of said pan 17.

A drinking water supply pipe 24, from the city water supply or elsewhere, is

brought in through the bottoms of the r shells 4 and 5 and by a coupling elbow 25 forms a water-tight jointwith the bottom of the shell 5 and is connected to the inner ex tremity of a spiral coil 26. This spiral coil 26 follows and is seated within the spiral channel 14 of the pan 13 and the out-er extremity of this coil 26, by an elbow 27, is joined to the outer extremity of a similar reversely wound spiral coil 28 that follows and is seated in the spiral channel 18 of the pan 17. The inner extremity of the coil 28, by a coupling 29, forms a water-tight joint with the bottom of the pan 21, is connected to the extremity of a third coil 30 that rests on the flat bottom of said pan 21. The outer extremity of the coil 30 has an upward Vextension 30 that leads to the discharge nozfoo zle of the drinking fountain. The numeral 31 indicatesa waste water overflow vpipe that ext-ends downward from the bowl of the drinking fountain and terminates in osition to discharge the cold waste water into the upper pan 21. The inner shell. 5 is provided with a. short waste water diseharge pipe 52 that delivers int-o the head of a Waste Water discharge pipe 33 secured to and dependinefrom the bottoni of the outer shell.

Placed immediately on top of the lint coil 30 is a false bottom in the torni ot a perforated metal plate 3l. aty one edge of which is secured an upstanding guard plate 35, the upper end of which latter is seated against. the rim 8 and protects the pipes 30' and il i from the ice cake y, which latter is placed directlyv on said false bottoni 34.

lilith the ahove deserihed arrangement', the cold waste vratcr trom the huhhlinpl fountian and the melting' iee ivater delivered into the upper pan 2l u'ill overtloiv through conduit .23 into the 1oasin l5) and from thence uill start a spiral downward and outward course through the spiral conduit 18 of pan 17 and from thence ivill take a doivnvfard and inv-fard spiral course in the spiral channel il ot pan i'. From the inner extremity of the channel l-l the waste water u'ill'run to the bottoni of the inner Shell 5 and from thence will escape through overflow pipes 32 and 33. The flat, coil .'lt'l is of course always,` suhniereed in cold Water contained in the upper pan 2l.. vWith this arrangement', not only the waste u'at'er from the bubbling fountain hut from the melting,r ice is caused to `flou' around and keep more. or less submerged all three of the coils QG. 28 and 30.

Here it is highly important; to note that the tlov: of the drinking;l Water on its nav to the fountain through the coils 2o and 2S is in a reverse direction to the flow of the waste Water from the fountain through the Spiral channels l-l and This brings the. relativeliv vvarln incomingA drinking water and relatively cold escapingr waste u'ater into a reverse heat exchange relation while following the same tortuous courses,r and with the result that the heatA exchanged mayv he advantageously carried out, substantiallyY dovrn to the temperature pointvv ivhere. atJ the discharge end of the channel ll. the teinperat'ure of the ivaste Water has heen reduced substantially to that of the incoming drinking water.

Moreover, the arrangement described brings the various elements into a. verir compact relation and allor-ds a structure that; may he made and assemhled at comparatively small cost. The apparatus illustrated is cylindrical in horizontal section and the co-operatine pipe. coils and channels are true spirals, but' of course very eonsiderahle deviation may he. made from these forms so long as the general tio-operative relation is maintained. all Within the scope of the invention herein disclosed and claimed.

The term drinking fountain is herein used in a broad and liheral sense to include a device for dispensing water and having,r

means for eii,uig'iiier and returning the cold Waste water.

iVhat I claim is:

l. The combination with a refrigerator and a drinking fountain, ol a pluralit \v ot superiniposed pans within said refrigerator, a vfaste vfater conduit extended from Said drinking' l'ountain and delivering' into one of said pans, and a drinking water lsupply pipe extended to said drinkiner fountain and luivinif coils located in the several pans and subject; to exchange of temperature with the u'aste ivater (,list'fhare'ed through said pans. certain ot Isaid pans havinf." spiral channels in which thc coils ol .said drinkingr Water suppli` pipe are placed.

t2. The. coi'iihination vvith :i refrigerator and a drinking' fountain. ot superimposed pans within said refrigerator. adjacent lueur hers o'l`V .said pans having spiral channel` the one expanding radiallv outward and the other contractingr radiali,Y inuard. the outer portion oi the upper channel deliverin;r into the outer portion of the lou'cr channel, and a drinhinsi' unter suppl),r pip(l having coils:` placed in said rcvcrselv epiraled channels and following' the .saine :from thc inner portion of the louer channel to the outer portions of hoth channelsA and from the latter to the inner portion of said upper channel. the said water .supply pipe e \'tending! to said drinkingr `fountain. said fountain having a waste ivater pipe continued with means vfor delivering' the waste water into the inner receiving cndy o'i said upper spiral clnuinel and the inner delivcuv cud ot said lower spiral channel heiner open for tinl discharge ol' waste water therefrom.

il. The structure detinod in claim i.) in further continuation with an upper pan placed aliovc the t\vo pans uotcd and having' an orcrllou' conduit arranged lo deliver to .said upper .spiral channel. .said drinkiruf water pipe havin;r a coil placed on the hot. tom of .said upper pan and the u'astc water pipe from said fountain heiner arranecd to deliver into said upper pan.

l. The structure delincd in claini :l in further eon'ihination with a: upper pan placed ahove the tivo nani: noted and haviin: an overt'loiv conduitr arranged to deliver to said upper :spiral channel. raid drinkingr water pipe havin;f a coil placed on the hottom ot said upper pan and the nas-te water pipe Yfrom said 'fountain heine' arrauefcd to deliver into said upper pan. a perforated talse bottoni placed on the coil in ,said upper pan. and a :guard plaie extended from said false hot'tiom to protect said waste vfatcr pipe in the upper portion ot the drinkin; r water suppl)1 pipe 'from ice contained on said false bottom.

ln testimony whereof 4l ailix in): signature.

MEET( )N It. HUCOCK.

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